Current-Limiting Fuse Update - New Style Fuse for Protection of Semiconductor Devices

Power equipment utilizing power diodes, silicon-controlled rectifiers (SCR's), and other semiconductor devices continues to take a greater role in electrical distribution systems. Rectifiers, uninterruptible power supply (UPS) systems, ac and dc solid state motor drives, solid state power controllers, and other such equipment require overcurrent protection suited to the special needs of the semiconductor device, and the special requirements for the type of circuitry. The important characteristics of a new line of fuses which is specially designed for the protection of semiconductor devices are described. The major considerations for semiconductor fuse protection are emphasized and a practical protection approach is presented.